I don't know if this is still a Problem. I run into this Problem recently. The principles described here
http://stackful-dev.com/raid-install-ubuntu-server-on-a-large-hard-drive.html
helped me. In particular the Information to install a 1 MB biosgrub Partition. This will be automatically detected.
Also here is some useful Information
http://stackful-dev.com/raid-101-recovering-when-hard-drives-die.html
I don't know if this is still a Problem. I run into this Problem recently. The principles described here
http:// stackful- dev.com/ raid-install- ubuntu- server- on-a-large- hard-drive. html
helped me. In particular the Information to install a 1 MB biosgrub Partition. This will be automatically detected.
Also here is some useful Information
http:// stackful- dev.com/ raid-101- recovering- when-hard- drives- die.html